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1
18 package org.apache.geronimo.interop.rmi.iiop;
19
20 import org.apache.geronimo.interop.*;
21 import org.apache.geronimo.interop.util.*;
22 import java.lang.reflect.*;
23 import java.util.HashMap  ;
24
25 public class IDLEntityHelper implements ObjectHelper
26 {
27 private static Class [] EMPTY_CLASS_ARRAY = {};
28
29 private static Object [] EMPTY_OBJECT_ARRAY = {};
30
31 private static HashMap _helperMap = new HashMap ();
32
33 private Method _id;
34
35 private Method _type;
36
37 private Method _read;
38
39 private Method _write;
40
41 static IDLEntityHelper getInstance(Class theClass)
42 {
43 IDLEntityHelper helper = (IDLEntityHelper)_helperMap.get(theClass);
44 if (helper == null)
45 {
46 synchronized (_helperMap)
47 {
48 helper = (IDLEntityHelper)_helperMap.get(theClass);
49 if (helper == null)
50 {
51 helper = new IDLEntityHelper(theClass);
52 _helperMap.put(theClass, helper);
53 }
54 }
55 }
56 return helper;
57 }
58
59 private IDLEntityHelper(Class theClass)
60 {
61 try
62 {
63 Class helper = ThreadContext.loadClass(theClass.getName() + "Helper", theClass);
64 _id = helper.getDeclaredMethod("id", EMPTY_CLASS_ARRAY);
65 _type = helper.getDeclaredMethod("type", EMPTY_CLASS_ARRAY);
66 _read = helper.getDeclaredMethod("read", new Class [] { org.omg.CORBA.portable.InputStream .class });
67 _write = helper.getDeclaredMethod("write", new Class [] { org.omg.CORBA.portable.OutputStream .class, theClass });
68 }
69 catch (SystemException ex)
70 {
71 throw ex;
72 }
73 catch (Exception ex)
74 {
75 throw new SystemException(ex);
76 }
77 }
78
79 public String id()
80 {
81 try
82 {
83 return (String )_id.invoke(null, EMPTY_OBJECT_ARRAY);
84 }
85 catch (SystemException ex)
86 {
87 throw ex;
88 }
89 catch (Exception ex)
90 {
91 throw new SystemException(ex);
92 }
93 }
94
95 public org.omg.CORBA.TypeCode type()
96 {
97 try
98 {
99 return (org.omg.CORBA.TypeCode )_type.invoke(null, EMPTY_OBJECT_ARRAY);
100 }
101 catch (SystemException ex)
102 {
103 throw ex;
104 }
105 catch (Exception ex)
106 {
107 throw new SystemException(ex);
108 }
109 }
110
111 public Object read(ObjectInputStream input)
112 {
113 try
114 {
115 return _read.invoke(null, new Object [] { input._cdrInput });
116 }
117 catch (SystemException ex)
118 {
119 throw ex;
120 }
121 catch (Exception ex)
122 {
123 throw new SystemException(ex);
124 }
125 }
126
127 public void write(ObjectOutputStream output, Object value)
128 {
129 try
130 {
131 _write.invoke(null, new Object [] { output._cdrOutput, value });
132 }
133 catch (SystemException ex)
134 {
135 throw ex;
136 }
137 catch (Exception ex)
138 {
139 throw new SystemException(ex);
140 }
141 }
142 }
143 |
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